diff options
| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2005-05-01 17:58:37 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-01 17:58:37 +0200 |
| commit | edfbe2b0038723e5699ab22695ccd62b5542a5c1 (patch) | |
| tree | f1c613d32824f274b0e3daf492e87b0c9051c789 /include | |
| parent | [PATCH] doc: Locking update (diff) | |
| download | linux-edfbe2b0038723e5699ab22695ccd62b5542a5c1.tar.xz linux-edfbe2b0038723e5699ab22695ccd62b5542a5c1.zip | |
[PATCH] count bounce buffer pages in vmstat
This is a patch for counting the number of pages for bounce buffers. It's
shown in /proc/vmstat.
Currently, the number of bounce pages are not counted anywhere. So, if
there are many bounce pages, it seems that there are leaked pages. And
it's difficult for a user to imagine the usage of bounce pages. So, it's
meaningful to show # of bouce pages.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/page-flags.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 6b74fcf5bb63..39ab8c6b5652 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -131,6 +131,7 @@ struct page_state { unsigned long allocstall; /* direct reclaim calls */ unsigned long pgrotated; /* pages rotated to tail of the LRU */ + unsigned long nr_bounce; /* pages for bounce buffers */ }; extern void get_page_state(struct page_state *ret); |